Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model.
The most abundant of the modified nucleosides, and once considered as the "fifth" nucleotide in RNA, is pseudouridine, which results from the action of pseudouridine synthases. Recently, the mammalian pseudouridine synthase 1 (hPus1p) has been reported to modulate class I and class II nucl...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2014-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0094610 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849332405186330624 |
|---|---|
| author | Tiphaine Huet François-Alexandre Miannay Jeffrey R Patton Stéphane Thore |
| author_facet | Tiphaine Huet François-Alexandre Miannay Jeffrey R Patton Stéphane Thore |
| author_sort | Tiphaine Huet |
| collection | DOAJ |
| description | The most abundant of the modified nucleosides, and once considered as the "fifth" nucleotide in RNA, is pseudouridine, which results from the action of pseudouridine synthases. Recently, the mammalian pseudouridine synthase 1 (hPus1p) has been reported to modulate class I and class II nuclear receptor responses through its ability to modify the Steroid receptor RNA Activator (SRA). These findings highlight a new level of regulation in nuclear receptor (NR)-mediated transcriptional responses. We have characterised the RNA association and activity of the human Pus1p enzyme with its unusual SRA substrate. We validate that the minimal RNA fragment within SRA, named H7, is necessary for both the association and modification by hPus1p. Furthermore, we have determined the crystal structure of the catalytic domain of hPus1p at 2.0 Å resolution, alone and in a complex with several molecules present during crystallisation. This model shows an extended C-terminal helix specifically found in the eukaryotic protein, which may prevent the enzyme from forming a homodimer, both in the crystal lattice and in solution. Our biochemical and structural data help to understand the hPus1p active site architecture, and detail its particular requirements with regard to one of its nuclear substrates, the non-coding RNA SRA. |
| format | Article |
| id | doaj-art-b77fe52de2cf4b4cafd706ce10ca8ee1 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-b77fe52de2cf4b4cafd706ce10ca8ee12025-08-20T03:46:12ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0194e9461010.1371/journal.pone.0094610Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model.Tiphaine HuetFrançois-Alexandre MiannayJeffrey R PattonStéphane ThoreThe most abundant of the modified nucleosides, and once considered as the "fifth" nucleotide in RNA, is pseudouridine, which results from the action of pseudouridine synthases. Recently, the mammalian pseudouridine synthase 1 (hPus1p) has been reported to modulate class I and class II nuclear receptor responses through its ability to modify the Steroid receptor RNA Activator (SRA). These findings highlight a new level of regulation in nuclear receptor (NR)-mediated transcriptional responses. We have characterised the RNA association and activity of the human Pus1p enzyme with its unusual SRA substrate. We validate that the minimal RNA fragment within SRA, named H7, is necessary for both the association and modification by hPus1p. Furthermore, we have determined the crystal structure of the catalytic domain of hPus1p at 2.0 Å resolution, alone and in a complex with several molecules present during crystallisation. This model shows an extended C-terminal helix specifically found in the eukaryotic protein, which may prevent the enzyme from forming a homodimer, both in the crystal lattice and in solution. Our biochemical and structural data help to understand the hPus1p active site architecture, and detail its particular requirements with regard to one of its nuclear substrates, the non-coding RNA SRA.https://doi.org/10.1371/journal.pone.0094610 |
| spellingShingle | Tiphaine Huet François-Alexandre Miannay Jeffrey R Patton Stéphane Thore Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. PLoS ONE |
| title | Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. |
| title_full | Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. |
| title_fullStr | Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. |
| title_full_unstemmed | Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. |
| title_short | Steroid receptor RNA activator (SRA) modification by the human pseudouridine synthase 1 (hPus1p): RNA binding, activity, and atomic model. |
| title_sort | steroid receptor rna activator sra modification by the human pseudouridine synthase 1 hpus1p rna binding activity and atomic model |
| url | https://doi.org/10.1371/journal.pone.0094610 |
| work_keys_str_mv | AT tiphainehuet steroidreceptorrnaactivatorsramodificationbythehumanpseudouridinesynthase1hpus1prnabindingactivityandatomicmodel AT francoisalexandremiannay steroidreceptorrnaactivatorsramodificationbythehumanpseudouridinesynthase1hpus1prnabindingactivityandatomicmodel AT jeffreyrpatton steroidreceptorrnaactivatorsramodificationbythehumanpseudouridinesynthase1hpus1prnabindingactivityandatomicmodel AT stephanethore steroidreceptorrnaactivatorsramodificationbythehumanpseudouridinesynthase1hpus1prnabindingactivityandatomicmodel |